Parallels Panel for Unix:
1. Extract and copy NavigationContext.php to /usr/local/psa/admin/plib folder first. It is recommended to backup original file;
http://kb.parallels.com/Attachments/11844/Attachments/NavigationContext.php.Unix.zip
2. Then, to hide ‘Mail’ link run the command below, after that ‘Mail’ link will be hidden in the left menu of all users:
mysql -uadmin -p`cat /etc/psa/.psa.shadow` -Dpsa -e "insert into misc (param, val) values ('hide_mail_link', 'true')"
3. To hide ‘Applications’ link run the command below, after that ‘Applications’ link will be hidden in the left menu of all users:
mysql -uadmin -p`cat /etc/psa/.psa.shadow` -Dpsa -e "insert into misc (param, val) values ('hide_applications_link', 'true')"